For best results, cap your in-game FPS at half of your monitor's refresh rate (e.g., if you have a 60Hz screen, cap the game at 30 FPS) before applying LSFG to avoid inconsistency.
The utility is an excellent tool for portable PC gamers. It packages a powerful scaling engine into a lightweight, no-install format. By separating upscaling and frame generation from the game engines themselves, it allows you to improve performance in almost any game. Whether you want to play demanding new games at 60 FPS on your Steam Deck or take advantage of the ROG Ally's 120Hz screen, this utility helps maximize your handheld hardware's potential.
Frame generation requires a stable baseline to avoid visual artifacts. If your game fluctuates wildly, use an in-game limiter or RTSS (RivaTuner) to lock your base framerate to 30 FPS or 40 FPS before turning on LSFG.
Master Lossless Scaling v3.0.0.1 Portable: Boost Gaming FPS Anywhere lossless scaling v3001 portable
Developed by THS and first released on Steam in 2018 (App ID 993090), Lossless Scaling is a utility that allows you to scale any windowed game to fullscreen using state-of-the-art algorithms. Beyond simple scaling, it features a machine learning-based frame generation technology (LSFG) that can dramatically increase the perceived smoothness of your games. In essence, it makes lower-end hardware punch above its weight, providing performance benefits similar to NVIDIA's DLSS and AMD's FSR, but without being tied to specific graphics cards.
: Allows users to triple their perceived frame rate by generating two intermediate frames for every original frame, significantly increasing smoothness on portable devices like the Steam Deck or ASUS ROG Ally.
Includes LS1 (specialized scaling), AMD FSR, NVIDIA NIS, Integer Scaling, and more. For best results, cap your in-game FPS at
A "portable" version, often found on various online forums, software archives, and GitHub repositories, is a modified or repackaged version of the application that does not require installation. You can simply download the .zip archive, extract it to any folder (or a USB drive), and run the .exe file directly. Several community-driven GitHub repositories explicitly mention that their builds include a portable version.
Reduced CPU overhead for scaling operations.
Lower the game's resolution below your screen's native resolution (e.g., set a 1080p screen to 720p, or an 800p screen to 540p). By separating upscaling and frame generation from the
For the smoothest experience, cap your base game FPS to a factor of your monitor's refresh rate (e.g., if you have a 60Hz monitor, cap the game at 30 or 60 FPS).
: Unlike hardware-locked technologies like DLSS 3, this frame generation works on any GPU and with any game running in windowed or borderless mode.
(Invoking related search terms for follow-ups.)
Ensure HAGS is turned on within your Windows Graphics Settings. This allows Lossless Scaling to pass frames directly to your GPU with minimal delay.
The 32K clarity vanished. The world dropped to 1440p. Then 1080p. The edges of the buildings grew fuzzy. The individual raindrops merged back into grey streaks. The faces of the crowd became slightly smudged, like paintings left in the rain.